Japanese Imperial Demon Army
Sayuri Hanayori
She is a member of Guren's squad since she was 16 back in high school prior to the apocalypse. She has a crush on Guren.
Kureto Hīragi
The current leader of the Hiragi family and the Japanese Imperial Demon Army.
Seishirō Hīragi
Major General of the Japanese Imperial Demon Army.
Shinya Hīragi
He is a friend from his high school days. Adopted into the prestigious Hiragi family. Norito and Shinya seem to get along and often team up to annoy Guren.
Yuichiro Hyakuya
He is a kid who gets special treatment from Guren. Under Guren's orders as punishment to Sergeant Shinoa Hiragi, Goshi lures her in with a mortifying illusion of a naked Yu crying for his mama.
Guren Ichinose
He is the leader of Goshi's squad and the Moon Demon Company. They have been on the same squad since they were 16. Goshi likes to tease him, and Guren often responds by ordering Sayuri or Shigure to beat him up. A member of the prestigious Ichinose family.
Mito Jūjō
She is a member of Guren's squad since she was 15 back in high school prior to the apocalypse. A typical tsundere ojou-sama. Goshi holds Mito back when she loses her temper and tries to attack Guren. A member of the prestigious Jujo family.
Shigure Yukimi
She is a member of Guren's squad since she was 16 back in high school prior to the apocalypse. She does not speak often.
Vampires
Chess Belle
Crowley Eusford
Mikaela Hyakuya
A young vampire, who Guren, Shigure, and Goshi fight together. He nearly kills Guren.
Horn Skuld
Mel Stefano
Guren's squad kills him in Nagoya.
Other
Mahiru Hīragi
Shinya's deceased fiancée and Guren's lover. She became the demon in Guren's sword.